Tagged: REST

“Copperr” – My API-Wrapper R Package for Copper™ CRM

copperr is an R package that connects to the Copper™ CRM Platform APIs using tidy principles. The package implements most key actions from their REST API described on Copper’s developer portal here. The package includes what you’d expect to see in an API wrapper:

  • Basic (Username/API-key) Authentication methods, and caching for API details
  • CRUD (Create, Retrieve, Update, Delete) methods for records
  • Query a set of records
  • Retrieve metadata Resources (Custom Fields, Sources, Pipeline Stages, etc.)
  • Retrieve User profiles
  • Helper functions to simplify some common record lookups and manipulations

You can download the package and read the “Getting Started” guide on Github here

I’ll probably provide some examples of the kind of sales data analysis and data cleansing I am using this package for in subsequent posts. Leave a comment if you’re interested in this?

REST API on a Pi, Part 2: control your GPIO I/O ports over the internet

In Part 1 of this series, we built a simple REST API in JavaScript on our Raspberry Pi.
One of the most useful reasons for providing your Raspberry Pi with a REST API is to expose its input and output ports via the Internet for remote monitoring and control. This will allow you to control your RPi’s inputs and outputs from the browser on any smartphone or PC wherever you are in the world.
So now we will do just this, extending our REST API implementation from part 1 to read and display digital input ports.

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Event-driven programming, Finite State Machines and NodeJS

I started out in my software engineering life writing software for embedded real-time systems and communication stacks, so I often think of myself as an async native. I’ve written a lot of code in various languages, mostly not using event-driven programming models and design patterns, but hardware interrupts, callback functions, event loops and finite state machines – I still see these as reassuringly familiar features of my original habitat. Call it the baby duck syndrome.

Who is this post for?

This post is primarily aimed at developers working with (or planning to work with) server-side JavaScript using NodeJS. If you’re already familiar with event loops and state machines then much of this article will be familiar to you. For others, I’m hoping this post will provide you with an understanding of the fundamentals of the event-driven programming model you will need when creating Finite State Machines or working with NodeJS on the server or on a Raspberry Pi or similar device. Continue reading →

How to build a REST Web API on a Raspberry PI in JavaScript

One of the most useful reasons for providing your Raspberry Pi with a REST API is to expose its inputs and outputs to a web client (on any iPhone, laptop or desktop PC anywhere in the world) for remote monitoring and/or control. This is part 1 of a 2 part blog showing how to implement a REST API in JavaScript.

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